package com.lei.datastructure.collection.set;

/**
 * @Author LeiXiaoLei
 * @Date 2022/8/17 16:17
 * @Version 1.0
 */
public interface Set<E> {

    void add(E e);

    void remove(E e);

    boolean contains(E e);

    int getSize();

    boolean isEmpty();
}
